why does my Toyota RAV4 Fifth Generation (2019-present) overheat after long drives

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and the engine is cool.
• Gather tools and materials required for the repair.

2. Coolant Level Inspection

• Open the hood and locate the coolant reservoir.
• If low, add the appropriate type of coolant (Toyota Genuine Long Life Coolant) to the reservoir and radiator.

3. Leak Repair

• Tools Required: Pliers, coolant hose clamps, socket set.
• Identify and replace any damaged hoses or clamps.
  • Disconnect the hose using pliers.
  • Replace with a new hose and secure using clamps.

4. Thermostat Replacement

• Tools Required: Socket set, torque wrench, gasket scraper.
• Drain the coolant from the radiator.
• Remove the thermostat housing by loosening bolts with a socket.
• Replace the thermostat with a new one, ensuring proper orientation.
• Reattach the housing and tighten to manufacturer specifications (typically 7-9 ft-lbs).

5. Radiator Fan Check

• Tools Required: Multimeter.
• With the engine running, check the voltage at the fan connector when the engine reaches operating temperature.
• If the fan does not engage, replace the fan motor.

6. Final Assembly

• Refill the coolant system with the appropriate mixture.
• Bleed the cooling system to remove any air pockets.
• Start the engine and monitor for leaks, ensuring the system is functioning properly.